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| author |   Paolo Abeni <pabeni@redhat.com> | 2020-02-21 19:42:13 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-02-22 21:58:33 -0800 |
| commit | 39f3b41aa7cae917f928ef9f31d09da28188e5ed (patch) | |
| tree | eeb14d63e1a74be8a39bf4de03a3ec059e0690ae /net/netlink/genetlink.c | |
| parent | ipv4: ensure rcu_read_lock() in cipso_v4_error() (diff) | |
| download | linux-dev-39f3b41aa7cae917f928ef9f31d09da28188e5ed.tar.xz linux-dev-39f3b41aa7cae917f928ef9f31d09da28188e5ed.zip | |
net: genetlink: return the error code when attribute parsing fails.
Currently if attribute parsing fails and the genl family
does not support parallel operation, the error code returned
by __nlmsg_parse() is discarded by genl_family_rcv_msg_attrs_parse().
Be sure to report the error for all genl families.
Fixes: c10e6cf85e7d ("net: genetlink: push attrbuf allocation and parsing to a separate function")
Fixes: ab5b526da048 ("net: genetlink: always allocate separate attrs for dumpit ops")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/netlink/genetlink.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 0522b2b1fd95..9f357aa22b94 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -497,8 +497,9 @@ genl_family_rcv_msg_attrs_parse(const struct genl_family *family, err = __nlmsg_parse(nlh, hdrlen, attrbuf, family->maxattr, family->policy, validate, extack); - if (err && parallel) { - kfree(attrbuf); + if (err) { + if (parallel) + kfree(attrbuf); return ERR_PTR(err); } return attrbuf; |